Question

Choose the correct answer from the alternatives given.
Which hormone stimulates secretion of milk in mammary glands?

• A. TSH
• B. Prolactin
• C. Vasopressin
• D. Thyroxine

Answer 1

The correct option is B Prolactin

(A) Thyroid stimulating hormone (TSH) promotes growth and function if thyroid gland.

(B) Prolactin hormone stimulates lactation (milk production) and has a direct effect on the breasts immediately after parturition.

(C) Vasopressin or antidiuretic hormone (ADH) acts mainly at the kidney and stimulates resorption of water and electrolytes by the distal tubules and thereby reduce the loss of water through urine (diuresis).

(D) Thyroxine is primarily responsible for regulation of metabolism.

So the correct answer is vasopressin.